Researchers Study Dangers of Secondhand Cannabis Smoke, Cite …

Cannabis has never killed anyone, but that hasn’t stopped American health experts from warning against the possible problems that the all-natural plant can cause. With California set to start recreational weed sales in five weeks, San Francisco health officials have released a comprehensive set of health concerns that they predict could arise from the state’s newly legal marijuana market, focusing on teen abuse and ensuring that “perceptions of cannabis recognize risks associated with use.” But as California health experts continue to compare cannabis to alcohol in their approach to issues like driving under the influence and workplace use, one group of researchers wants cannabis health protocols to take a closer look at the similarities between marijuana and tobacco.